Synonyms|441Antonyms|81|Broader|10Narrower|1Related|338
1
pass upon
1
praise(verb, support, favor, back, approve)
1
probate
1
provide evidence(expression, idiom, detail, record)
1
recognize
1
recommend(verb, support, praise, favor, back)
1
review
1
right
1
set seal on(expression, idiom, endorse, prove, verify)
1
settle(verb, support, show, determine, back)
1
sign and seal(expression, idiom)
1
size up(verb, expression, support, back, confirm)
1
stand behind(verb, expression, support, praise, favor)
1
stand up(verb, expression, confirm, prove, demonstrate)
1
stand up for(verb, expression, idiom, support, praise)
1
stump for(verb, expression, support, praise, favor)
1
swear and affirm(expression, idiom)
1
swear to
1
testimonial
1
thumbs up(expression, support, back, sign, prove)
For more, visit Authenticate on Power Thesaurus
11 years ago|8.9k views|share |citing 
APASmart Define. (2015). authenticate thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/authenticate/thesaurus/synonyms
ChicagoSmart Define. 2015. "authenticate thesaurus" https://smartdefine.org/authenticate/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, authenticate thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/authenticate/thesaurus/synonyms>.
MLASmart Define. "authenticate thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/authenticate/thesaurus/synonyms>